I decided to test out those 2oz condiment cups for germinating seeds instead of using trays or bags. I stacked five layers of paper towel inside and poked a small hole in each lid for ventilation and refilling. It worked so well on a heat mat and saved me so much space. Everything sprouted fast and I could monitor them easily. Now my friends are asking me to do their germination for them or something. Hahaha. Feeling like a king right now, let me tell you.